Wrence



A. S. LIZAK.

WRENCH;

APPLlcATloN FILED ocT.`25, 19205 Patented July 19, 1921.

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AUGUST Sl LIZAE, OFl CHIQGO, IliIJIIll'OIS,` ASBIGNR TO'KENTOWSEI & COMPANY, 0F 1 CHICAGO, ILLINOIS; CPARTNRSHIP QONSISIINQ M. E. XENTOWSKI, T. E.

f i Wannen.

13e it known tliatIppGUsr `S. LiZAK,`

citizen ot the VUnited Sit-aptes, residing at (fhicago, in the county ot' Cook and State o'l' Illinois, have inventedfcertain new and useful Improvements in. lVrenches, of which theli'ollowing is a s .ecification y y y 1 This invention re. ates to a` wrench adapt` ed for the gripping-'tof olygonal orcurved s||"`rl`aces, and is themed;

clearly hereinafter J ap'peaiji More y )artculai-ly thiswrench embodies strength with* outnndue weight, and may bead'usted with ly of parts that are inexpensive to construct.` A suggestiva embodiment 0f my invention A1s illustrated in` the accompanying drawing whereinw` f lligurel isa side elevation of the wrench;``

Fig. i2 is a 'fragmentary enlarged sectional view taken` on line 2542 of Fig. 3;

Fig; 3 `is a transvese' section takenyon .lincl--31otlt`ig.2`;` ad f f f f Fig; 4 is a detail'in elevation lookin `the Darts indicated b The" handle it formed in the usual upon my wrench "may manner Aand 1s provided at one end witl-rahead "on whiehis mount# ed a txedjaw serratedfin the usual manner. The Vsides `olthe.handle adjacent this jaw are recesseiil to provide a neck 7 upon which is secured a with parallel sideshdaatlua back or connect inpi` wall 9. This frame "1s pivotally naount-` ed upon the `wrench as means of a pin 10 softs `to have capacity {forfrocltin to a slight patent, shoulderswll and 12 a site ends pt' the neck ooiiperating with" the walls of the traine to limit its movements. Extending laterally `frein thevhaiidle"adjacent the shoulder 12are` apai of lugs 13 in spaced relation, as best shown in Fig. 4.

hil'ounted within the frame is a slidable jaw (l having the rear edge of its shank 14 provided with ratchet teeth 15 adapted to cooperate with similarly formed teeth 16 which are formed on the inner side of the frame back 9. Extending laterally from the shank ot this movable jaw at one end is a head 17 serrated as at 18 to enhance its gripping el'ect as is usual with such derized` by a" number` of featurespt improvement which will moreA adjust the the line 444.046 4 ig. f2. y

`lJ-Sliaped frame B formed spwmwaonofwtmwent. Patented July 1o, 1921. V "applncatiea 1aed amener 25, reap. serial No. `4.19.279.

.7, this Springreceivng a stud 22 which is pressedr against one end 23 of a leaf spring l) whose opposite end-is secured to the handle `as by means of au screw 24. The effect of this spring is to maintain the slidable jaw away from the `luindle and in constant engegen@entre` with the back of the frame, so that` thetwo'sets of ratchet teeth may cooperate to preventV the jaw C from being moved outwardlyrelatve to the fixed jaw. 'aw `C to another position, it isyneeessary that the spring D he depressed against the tension ofthe spring 20, and for this purpose means are provided as follows: A pin 25 is arranged transversely between the wallsS of the frame in spaced relation to the spring D, and arranged to enter between this. in and spring is the foot 30 of a wedge E tiet is slotted as at 3l to receive through its ,body a pin 32 which extends between the twolugs 13.. A spring coiled around the wedge presents one end to the pin 3;?, and its other end against a head 34: mfovided on the wedge, the tendency being.;l to hold the wedge retracted so that its toot 3l) lmay not interfere with the action ot the spring D'inqholding the slidable jaw in engaizement with the frame back.

"trom the? foregoing description, it will be "noted that l have provided a wrench wherein "tie two jaws may be held in a relatively fixed position of adjustment through the medium of ratchet teeth, two springs beingr employed to assist in this`operation. To shift the movable jaw into another position of adjustment, it is not necessary to exert lateral pressure upon the movable jaw, but only to press forward the wedge E to advance its foot 3() between the pin 25 and the leaf spring D. By so doing the spring D is depressed sufiiciently to disframe, and wedge means for retracting the spring` to permit free longitudinal movements vof the slidable jaw as required. It may be constructed in forms other than the onelierein shown and described, but in so far as' any suchmodifications make use of the improvements'j which are defined in the appended claims, I desire that they be ineludedy within 'the scope of this patent.

I claim: n

1..In` a wrench, the combination of a handle provided with` a fixed jaw, a U-sha ed frame lmounted on the handle and provi ed with ratchet teeth which face the handle in spaced lrelation thereto, a jaw movably arranged,A within the frame andjprovided with ratchet teeth ladapted to coperate with those in thefranie, a leaf spring carried by the handle and pressing on the movable jaw to maintain its ratchet teeth in engagement withl those inv the frame, aipin arranged transversely in the frame, and a wedge arranged for v,projection between the pin and vleaf spring to depress the latter whereby the movable Jaw may be freely moved within the frame, substantially as described. l

2. In a wreneh,`the combination of a handle provided with a fixed jaw, a frame mounted thereon andA provided lwith teeth therein, a movable jaw mounted to shift both lengthwise and laterally of the handle, means carried bythe movable jaw adapted when the'latter is shifted laterally to one position to engage the frame teeth wherebyy themovable handle is held in a fixed position of adjustment longitudinally of the wrenclntension means for norma 1y maini taining the movable jaw in the aforesaid position, and a wedge adapted to counteract the tension means whereby the movable jaw is free 'to shift to Lanother position preliminary to movement longitudinally ot thc wrench, substantially as described.

3. In a wrench, the combination of a handle provided with a fixed jaw, a movable jaw mounted to shift both lengthwise and laterally of the handle, means within which the movable jaw is resiliently mounted having ratchet teeth adapted to engage with the jaw for holding the same in a iixed position of adjustment, a wedge slidingly arranged on the handle and adapted when advanced to permit the movable jaw to freely shift laterally whereby it may also shift longitudinally of the wrench, and spring means normally tending to hold the wedge in retracted position, substantially as described.

4. In a wrench, the combination of a handle provided with a lixed jaw, a frame earried'by the handle, a movable jaw arranged within the frame and adapted to be shifted lengthwise of the handle, a coiled springl arranged between the handle and movable jaw tending to hold the latter remote therefrom, cooperating ratchet teeth formed on the movable jaw and frame whereby the l'ormer is held in a fixed position of adjustment within the latter, means interposed between the coil spring and the movable jaw and having one end anchored 4to the handle, and means for depressing the said means against the tension of the coiled spring to thereby release the movable jaw from engagement with the teeth of the frame, substantially as described.

5. In a wrench, the combination of a handle provided with a fixed aw, a frame carried by the handle, a movable jaw arranged within the frame, spring means arranged between the handle and movable jaw tending to hold the latter away from the former, interengaging means formed on the movable jaw and frame adapted to retain theformer in a selected position of adjustment 'within the latter when the jaw is held away from the handle, a wedge interposed between the handle and movable jaw and normally held in retracted position, and means interposed between the spring means and movable jaw with which the wedge may coperate to depress the former whereby the movable jaw is free to be shifted within the frame, substantially as described.

i AUGUST S. LIZAK.

Witness:

EPHRAIM BANNING. 

